package com.heima.behavior.service.impl;
import com.alibaba.fastjson.JSON;
import com.heima.model.common.constants.article.HotArticleConstants;
import com.heima.model.mess.app.NewBehaviorDTO.UpdateArticleType;

import com.heima.behavior.service.ApBehaviorEntryService;
import com.heima.behavior.service.ApLikesBehaviorService;
import com.heima.common.exception.CustException;
import com.heima.model.behavior.dtos.LikesBehaviorDTO;
import com.heima.model.behavior.pojos.ApBehaviorEntry;
import com.heima.model.behavior.pojos.ApLikesBehavior;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.mess.app.NewBehaviorDTO;
import com.heima.model.threadlocal.AppThreadLocalUtils;
import com.heima.model.user.pojos.ApUser;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Service;

import java.util.Date;

@Service
@Slf4j
public class ApLikesBehaviorServiceImpl implements ApLikesBehaviorService {

    @Autowired
    ApBehaviorEntryService apBehaviorEntryService;

    @Autowired
    MongoTemplate mongoTemplate;

    @Autowired
    RabbitTemplate rabbitTemplate;

    @Override
    public ResponseResult like(LikesBehaviorDTO dto) {
        // 1. 校验参数
        ApUser user = AppThreadLocalUtils.getUser();
        if (user == null) {
            //点赞需要登录
            CustException.cust(AppHttpCodeEnum.NEED_LOGIN, "需要登录");
        }
        // 校验文章id不能为空     使用注解校验
        //校验点赞方式 只能是0 或 1   使用注解校验
        // 2. 根据当前登录用户id查询行为实体对象

        ApBehaviorEntry orEquipmentId = apBehaviorEntryService
                .findByUserIdOrEquipmentId(user.getId(), dto.getEquipmentId());
        if (orEquipmentId.getId() == null) {
            CustException.cust(AppHttpCodeEnum.PARAM_INVALID);
        }

        Short operation = dto.getOperation();
        // 3. 如果是点赞操作  判断是否已经点过赞
        if (0 == operation) {
            Query query = Query.query(Criteria.where("operation").is(0));
            ApLikesBehavior one = mongoTemplate.findOne(query, ApLikesBehavior.class);
            if (one == null) {
                ApLikesBehavior likesBehavior = new ApLikesBehavior();
                // 4. 没有点过赞则 像mongo点赞集合中 添加点赞数据
                likesBehavior.setArticleId(dto.getArticleId());
                likesBehavior.setOperation(dto.getOperation());
                likesBehavior.setEntryId(orEquipmentId.getId());
                likesBehavior.setCreatedTime(new Date());
                mongoTemplate.insert(likesBehavior);
            }
        } else {
            // 5. 如果是取消点赞操作  在mongo点赞集合中 删除对应点赞数据
            Query query = Query.query(Criteria.where("operation").is(0)
                    .and("articleId")
                    .is(dto.getArticleId()));
            mongoTemplate.remove(query, ApLikesBehavior.class);
        }
        NewBehaviorDTO behaviorDTO = new NewBehaviorDTO();
        behaviorDTO.setType(UpdateArticleType.LIKES);
        behaviorDTO.setArticleId(dto.getArticleId());
        behaviorDTO.setAdd(dto.getOperation().intValue()==0?1:-1);
        rabbitTemplate.convertAndSend(HotArticleConstants.HOT_ARTICLE_SCORE_BEHAVIOR_QUEUE
                ,JSON.toJSONString(behaviorDTO));
        log.info("消息发送成功==> 点赞行为内容:{}",behaviorDTO);

        return ResponseResult.okResult();
    }
}
